These are the names of Aaron’s sons: Nadab, the firstborn, and Abihu, Eleazar, and Ithamar.

But Nadab and Abihu died in the Lord’s presence when they presented unauthorized fire before the Lord in the Wilderness of Sinai, and they had no sons. So Eleazar and Ithamar served as priests under the direction of Aaron their father.

This is the service of the Gershonite clans at the tent of meeting, and their duties will be under the direction of Ithamar son of Aaron the priest.

This is the service of the Merarite clans regarding all their work at the tent of meeting, under the direction of Ithamar son of Aaron the priest.”

and gave the Merarites four carts and eight oxen corresponding to their service, under the direction of Ithamar son of Aaron the priest.

Nadab, Abihu, Eleazar, and Ithamar were born to Aaron,